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I've recently come into possession of a number of NECA 1/4 scale Predator figures, including the "classic" Jungle Hunter from the first movie with the "closed mouth" head. I've wanted to make a bio mask/helmet for it since I got it, and have spent quite some time trying to find a suitable 3D model to base it on. After much searching around and a number of false starts with low poly models I finally stumbled across a "pepakura" file designed to be printed on paper and cut out to make a full size helmet. Converting to a useable format for 3D modelling took a little time, but I was finally able to get it into Sketchup and start tinkering with it to try and make it suitable for printing in 3D.

I already had a rough mesh of the head from the closed mouth Predator that I'd created using 123d Catch on my phone, and sized in Sketchup to be as close to the physical version as possible. Using this I was then able to scale the pepakura mesh to the head, leaving a little...

I finally got around to working on the 3D model again, and have reached a point where I'm happy with the details and have prepared the model for printing. As well as finishing the interior venting details, the hose connector on the left temple was replaced with something closer to that used on the NECA Big Red figure (the Big Red bio is almost identical to the original P1 helmet, the only differences being the two half spheres on the forehead and the colour), and a small hose connector detail was added to the left cheek (this detail is missing from the NECA bios).

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